Nice thing about the Aphrodite wallet is that it alone will make both dark markets and the eventual Shadow market unnecessary for some. Sellers can set up shop right in a chat room like they have been doing in IRC channels for years, with the advantage of a secure currency built in.

That said, I don't think acceptance by dark markets is something to seek. Most of the DNM stories have been tragedies, leaving confiscated coins and ruined lives in their wake, and I predict the next major dump of XMR will be thanks to a FBI seized assets auction. Too centralized and too big a target, plus the cumbersomeness that comes with operating and using a dark site. It may be obsolete tech now.